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  <div id="layout-content"><div id="function.libxml-use-internal-errors" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">libxml_use_internal_errors</h1>
  <p class="verinfo">(PHP 5 &gt;= 5.1.0, PHP 7, PHP 8)</p><p class="refpurpose"><span class="refname">libxml_use_internal_errors</span> &mdash; <span class="dc-title">
   Disable libxml errors and allow user to fetch error information as needed
  </span></p>

 </div>
 <div class="refsect1 description" id="refsect1-function.libxml-use-internal-errors-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>libxml_use_internal_errors</strong></span>(<span class="methodparam"><span class="type">?</span><span class="type"><span class="type">bool</span><span class="type"></span></span> <code class="parameter">$use_errors</code><span class="initializer"> = <strong><code>null</code></strong></span></span>): <span class="type">bool</span></div>

  <p class="para rdfs-comment">
   <span class="function"><strong>libxml_use_internal_errors()</strong></span> allows you to disable
   standard libxml errors and enable user error handling.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.libxml-use-internal-errors-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>
    
     <dt>
<code class="parameter">use_errors</code></dt>

      <dd>

       <p class="para">
        Enable (<strong><code>true</code></strong>) user error handling or disable (<strong><code>false</code></strong>) user error handling. Disabling will also clear any existing libxml errors.
       </p>
      </dd>

     
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.libxml-use-internal-errors-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   This function returns the previous value of
   <code class="parameter">use_errors</code>.
  </p>
 </div>


 <div class="refsect1 changelog" id="refsect1-function.libxml-use-internal-errors-changelog">
  <h3 class="title">更新日志</h3>
  <table class="doctable informaltable">
   
    <thead>
     <tr>
      <th>版本</th>
      <th>说明</th>
     </tr>

    </thead>

    <tbody class="tbody">
     <tr>
      <td>8.0.0</td>
      <td>
       <code class="parameter">use_errors</code> is nullable now. Previously, its default
       was <strong><code>false</code></strong>.
      </td>
     </tr>

    </tbody>
   
  </table>

 </div>


 <div class="refsect1 examples" id="refsect1-function.libxml-use-internal-errors-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-5436">
    <p><strong>示例 #1 A <span class="function"><strong>libxml_use_internal_errors()</strong></span> example</strong></p>
    <div class="example-contents"><p>
     This example demonstrates the basic usage of libxml errors and the value
     returned by this function.
    </p></div>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /><br /></span><span style="color: #FF8000">//&nbsp;enable&nbsp;user&nbsp;error&nbsp;handling<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">libxml_use_internal_errors</span><span style="color: #007700">(</span><span style="color: #0000BB">true</span><span style="color: #007700">));<br /><br /></span><span style="color: #FF8000">//&nbsp;load&nbsp;the&nbsp;document<br /></span><span style="color: #0000BB">$doc&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">DOMDocument</span><span style="color: #007700">;<br /><br />if&nbsp;(!</span><span style="color: #0000BB">$doc</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">load</span><span style="color: #007700">(</span><span style="color: #DD0000">'file.xml'</span><span style="color: #007700">))&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;foreach&nbsp;(</span><span style="color: #0000BB">libxml_get_errors</span><span style="color: #007700">()&nbsp;as&nbsp;</span><span style="color: #0000BB">$error</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">//&nbsp;handle&nbsp;errors&nbsp;here<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #007700">}<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">libxml_clear_errors</span><span style="color: #007700">();<br />}<br /><br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

    <div class="example-contents"><p>以上例程会输出：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
bool(false)
</pre></div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.libxml-use-internal-errors-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="function.libxml-clear-errors.html" class="function" rel="rdfs-seeAlso">libxml_clear_errors()</a> - Clear libxml error buffer</span></li>
    <li class="member"><span class="function"><a href="function.libxml-get-errors.html" class="function" rel="rdfs-seeAlso">libxml_get_errors()</a> - Retrieve array of errors</span></li>
   </ul>
  </p>
 </div>

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